5.10-stable review patch. If anyone has any objections, please let me know. ------------------ From: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> This reverts commit 3ee7e2faef87594228eb2622f8c25c0495ea50a1 which is commit edc0378eee00200a5bedf1bb9f00ad390e0d1bd4 upstream. There are reports of this causing build issues, so revert it from the 5.10.y tree for now. Reported-by: Salvatore Bonaccorso <carnil@xxxxxxxxxx> Link: https://lore.kernel.org/r/ZZE1X8m5PXJExffG@xxxxxxxxxxx Cc: Jiaxun Yang <jiaxun.yang@xxxxxxxxxxx> Cc: Thomas Bogendoerfer <tsbogend@xxxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- arch/mips/Kconfig | 2 -- arch/mips/include/asm/mach-loongson64/boot_param.h | 3 +-- arch/mips/loongson64/env.c | 10 +--------- 3 files changed, 2 insertions(+), 13 deletions(-) --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -468,7 +468,6 @@ config MACH_LOONGSON2EF config MACH_LOONGSON64 bool "Loongson 64-bit family of machines" - select ARCH_DMA_DEFAULT_COHERENT select ARCH_SPARSEMEM_ENABLE select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_MIGHT_HAVE_PC_SERIO @@ -1380,7 +1379,6 @@ config CPU_LOONGSON64 select CPU_SUPPORTS_MSA select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT select CPU_MIPSR2_IRQ_VI - select DMA_NONCOHERENT select WEAK_ORDERING select WEAK_REORDERING_BEYOND_LLSC select MIPS_ASID_BITS_VARIABLE --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -117,8 +117,7 @@ struct irq_source_routing_table { u64 pci_io_start_addr; u64 pci_io_end_addr; u64 pci_config_addr; - u16 dma_mask_bits; - u16 dma_noncoherent; + u32 dma_mask_bits; } __packed; struct interface_info { --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -13,8 +13,6 @@ * Copyright (C) 2009 Lemote Inc. * Author: Wu Zhangjin, wuzhangjin@xxxxxxxxx */ - -#include <linux/dma-map-ops.h> #include <linux/export.h> #include <linux/pci_ids.h> #include <asm/bootinfo.h> @@ -133,14 +131,8 @@ void __init prom_init_env(void) loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr; loongson_sysconf.dma_mask_bits = eirq_source->dma_mask_bits; if (loongson_sysconf.dma_mask_bits < 32 || - loongson_sysconf.dma_mask_bits > 64) { + loongson_sysconf.dma_mask_bits > 64) loongson_sysconf.dma_mask_bits = 32; - dma_default_coherent = true; - } else { - dma_default_coherent = !eirq_source->dma_noncoherent; - } - - pr_info("Firmware: Coherent DMA: %s\n", dma_default_coherent ? "on" : "off"); loongson_sysconf.restart_addr = boot_p->reset_system.ResetWarm; loongson_sysconf.poweroff_addr = boot_p->reset_system.Shutdown;
